<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
    .box {
        width: 300px;
        height: 300px;
        background-color: skyblue;
        /* transform: scaleX(0.5) rotate(45deg); */
        transform: rotate(0deg) scaleX(1);
        border-radius: 50%;
        /* transform 变形 是有变形顺序的 */
        /* margin: 100px auto; */
        transition: all 1s;
        /* transform-origin: right bottom; */
    }

    .box:hover {
        transform: rotate(45deg) scaleX(0.5);
    }
</style>

<body>
    <div class="box"></div>
</body>

</html>